{"api_version":"1","generated_at":"2026-11-02T12:18:44+00:00","cve":"CVE-2026-119037","urls":{"html":"https://cve.report/CVE-2026-119037","api":"https://cve.report/api/cve/CVE-2026-119037.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-119037","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-119037"},"summary":{"title":"Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty","description":"Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty.\n\nsignature_valid uses each configured secret as the HMAC key, and nothing rejects undef or an empty string, both of which Digest::SHA treats as an empty key. A secret read from an unset environment variable, or an empty entry in a list of rotated secrets, is used as is.\n\nA remote attacker can sign a forged webhook with an empty key and have it accepted as sent by GoCardless.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-10-30 13:18:32","updated_at":"2026-10-30 17:13:54"},"problem_types":["CWE-347","CWE-347 CWE-347 Improper Verification of Cryptographic Signature"],"metrics":[],"references":[{"url":"https://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes","name":"https://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-119037","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119037","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Upgrade to Business-GoCardless 1.01 or later.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"119037","cve":"CVE-2026-119037","epss":"0.001230000","percentile":"0.020420000","score_date":"2026-11-01","updated_at":"2026-11-02 00:05:54"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","modules":["Business::GoCardless"],"packageName":"Business-GoCardless","packageURL":"pkg:cpan/Business-GoCardless","programFiles":["lib/Business/GoCardless/Utils.pm"],"programRoutines":[{"name":"Business::GoCardless::Utils::signature_valid"}],"repo":"https://github.com/payprop/business-gocardless","versions":[{"lessThan":"1.01","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty.\n\nsignature_valid uses each configured secret as the HMAC key, and nothing rejects undef or an empty string, both of which Digest::SHA treats as an empty key. A secret read from an unset environment variable, or an empty entry in a list of rotated secrets, is used as is.\n\nA remote attacker can sign a forged webhook with an empty key and have it accepted as sent by GoCardless."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-347","description":"CWE-347 Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-30T12:56:27.922Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"tags":["release-notes"],"url":"https://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes"}],"solutions":[{"lang":"en","value":"Upgrade to Business-GoCardless 1.01 or later."}],"source":{"discovery":"UNKNOWN"},"title":"Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty","x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-119037","datePublished":"2026-10-30T12:56:27.922Z","dateReserved":"2026-10-29T11:38:31.744Z","dateUpdated":"2026-10-30T12:56:27.922Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-30 13:18:32","lastModifiedDate":"2026-10-30 17:13:54","problem_types":["CWE-347","CWE-347 CWE-347 Improper Verification of Cryptographic Signature"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"119037","Ordinal":"1","Title":"Business::GoCardless versions before 1.01 for Perl accept forged","CVE":"CVE-2026-119037","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"119037","Ordinal":"1","NoteData":"Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty.\n\nsignature_valid uses each configured secret as the HMAC key, and nothing rejects undef or an empty string, both of which Digest::SHA treats as an empty key. A secret read from an unset environment variable, or an empty entry in a list of rotated secrets, is used as is.\n\nA remote attacker can sign a forged webhook with an empty key and have it accepted as sent by GoCardless.","Type":"Description","Title":"Business::GoCardless versions before 1.01 for Perl accept forged"}]}}}